The crew become entrenched in discussion with a sentient skin rash that takes over the crew, and Data has to synthesize a cure using ancient antibiotics who become enamored with the Captain, offering him immortality in exchange for flute lessons, which he refuses.
I’ll take a stab, S4E07 “Bellwhistles”
The crew become entrenched in discussion with a sentient skin rash that takes over the crew, and Data has to synthesize a cure using ancient antibiotics who become enamored with the Captain, offering him immortality in exchange for flute lessons, which he refuses.